NET Framework and Data Grid View control to display the Book table stored in the Book Store DB database of SQL Server Express.In this tutorial, you will learn to use the Framework and Data Gridview to add, delete, and edit records of the Book table.Most sections contain a Q & A section that answers common questions regarding the specific feature or area covered by the section.Note that some questions are duplicated in multiple sections based upon the section relevancy.The question and answers with code samples/snippets are contained in this documents only appendix to make for a one-stop shop of code.
A switch case statement manages the behavior of different call backs.
Because the SQLEnumerator does not supporting async calling, I have added delegates to call those methods asynchronously. NET 2.0, Sql Command object supports async calling to the database.
I use this feature to get all tables from the selected database.
Ole Db Public Class Form1 Dim my DA As Ole Db Data Adapter Dim my Data Set As Data Set Private Sub Form1_Load(By Val sender As System. Open() my DA = New Ole Db Data Adapter(cmd) 'Here one Command Builder object is required. Update Command = New Ole Db Command("UPDATE Table1 SET Field1 = ? ") 'It will automatically generate Delete Command, Update Command and Insert Command for Data Adapter object Dim builder As Ole Db Command Builder = New Ole Db Command Builder(my DA) my Data Set = New Data Set() my DA.
Load Dim con As Ole Db Connection = New Ole Db Connection("Provider=oledb.4.0;data source=|Data Directory|\test.mdb") ' Use relative path to database file Dim cmd As Ole Db Command = New Ole Db Command("SELECT * FROM Table1", con) con.